Third Dimension, a leader in non-contact metrology, today announced the release of a new technical whitepaper titled “Measuring Break Sharp Edge, using the GapGun® PRO2 and T15-M Sensor”.
The paper addresses the critical need for controlling the sharpness of machined edges, and how Third Dimension’s GapGun® provides a fast, accurate, and traceable solution.
“Executive Summary:
It is vital to control the sharpness of edges on critical components for aerodynamics in high pressure fluid flow, or pressure distribution under high loads. The GapGun is a non-contact laser measurement device that captures an accurate edge profile.
This profile is compared to chamfer- and radius-based profiles to determine if the edge meets the required specification. Delivering additional ease of use over traditional methods, the GapGun does not have moving parts or require expensive gels or consumable needles. Instead, with just the pull of a trigger, the measurement result is displayed to the user in seconds. The measurement is repeatable and accurate, and complies with ISO 17025 standards for traceability.”
Michael Briggs, Head of Sales at Third Dimension comments:
“Accurate break sharp edge measurements on turbine blades are critical to ensuring aerodynamic efficiency and long-term performance. The GapGun solution provides a fast, repeatable, and traceable method for capturing critical profiles, and helping aerospace manufacturers meet performance demands while reducing inspection time.”
Key benefits include:
The whitepaper is available for free download now, and instantly accessible below.

Founded in 1995, Third Dimension is a leading provider of non-contact, optical measurement systems for advanced manufacturing applications. Serving major global players in aerospace, automotive, and energy—including Airbus, GE, and Samsung—Third delivers innovative, high-precision solutions for measuring gap, flush, edge breaks, seals, and more. Driven by a mission to enable smarter manufacturing, Third continues to lead in dimensional metrology innovation.
For further information, please contact Third Dimension’s marketing team at: marcom@third.com.